Summary & Overview
CPT 26555: Excision and Reconstruction for Polydactyly
CPT code 26555 represents surgical excision of an extra finger with repositioning of a duplicated finger or thumb to a more functional anatomic position for patients with polydactyly. This procedure is clinically important because it addresses congenital hand anomalies that can affect function, development, and cosmesis, particularly in pediatric populations. Nationally, surgical correction of polydactyly is performed across a range of settings from outpatient ambulatory surgical centers to hospital operating rooms and involves hand surgery, plastic surgery, and pediatric orthopedics.
Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, typical sites of service, and common billing considerations tied to CPT code 26555. The publication outlines benchmark reimbursement themes, coding and documentation considerations relevant to billing and claims processing for reconstructive hand surgery, and summaries of policy factors that commonly affect coverage and authorization for congenital hand procedures.
This summary is intended to give clinicians, billing professionals, and policy analysts a national-level briefing on CPT code 26555, what it captures clinically, and the types of administrative and payer issues commonly associated with surgical correction of polydactyly.
Billing Code Overview
CPT code 26555 describes a surgical procedure to remove an extra finger and reposition a duplicate finger or thumb to a more suitable anatomic position for patients with polydactyly. This procedure is classified as hand/upper extremity reconstructive surgery and typically involves soft tissue and possible bone modification to achieve functional and cosmetic restoration.
Service Type: Surgical — hand/upper extremity reconstructive procedure
Typical Site of Service: Operating room or ambulatory surgical center, with possible care in an outpatient surgical setting depending on patient age and clinical complexity.
Clinical & Coding Specifications
Clinical Context
A typical patient is a pediatric patient (infant to early childhood) presenting with congenital polydactyly of the hand, commonly an extra digit on the ulnar (postaxial) or radial (preaxial) side. The child is referred by primary care or pediatric orthopedics/plastic surgery after initial assessment. Preoperative evaluation includes history, physical exam, and plain radiographs of the hand to characterize bony involvement and guide surgical planning. The procedure is performed in an operating room or ambulatory surgery center under general anesthesia; for older cooperative patients, regional or local anesthesia with sedation may be used. The surgeon excises the supernumerary digit and reconstructs soft tissue and osseous structures to create a functional and cosmetically appropriate finger or thumb position. Hemostasis, wound closure, and postoperative immobilization (splint or dressing) are completed. Typical postoperative workflow includes anesthesia recovery, discharge instructions for wound care and activity restrictions, and a follow-up visit within 1–2 weeks for suture removal and assessment. Documentation should include indication (polydactyly), laterality, surgical technique (excision, reefing, reconstruction, osteotomy if performed), anesthesia type, estimated blood loss, and any complications.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Default or no modifier | Rarely reported; some payors accept as a placeholder when no other modifier applies. |